Effect of annealing and impurity concentration on the TL characteristics of nanocrystalline Mn-doped CaF2

Comparative study of optical and dosimetric properties of Mn-doped CaF2

“…The optimal Mn concentration of commercially available TLD-400 is regarded as 3 mol%. 24) However, some papers have reported that the optimal Mn concentration is 2.1-2.5 mol% and also 5 mol%. 25,26) In this study, we prepared CaF 2 doped with 2 mol% MnF 2 .…”

Luminescence Characteristics of LiCaAlF\(_6\):Eu TLD Phosphor

“…The precipitate was washed several times with distilled water/ethanol and dried in a vacuum oven at around 70 • C overnight. The details could be found in our earlier papers [12]. It was then rapidly heated in a graphite crucible in air till the powders completely melted (at around 900 • C).…”

Mechanoluminescence, thermoluminescence, optically stimulated luminescence and photoluminescence in SrAl2O4:Eu micro- and nanophosphors: effect of particle size and annealing in different atmospheres

“…The atmospheric oxygen during annealing in air at high temperatures may get diffused in the matrix altering the composition or forming small clusters of new phase(s). 83,84 The phase transition from monoclinic a-phase to hexagonal b-phase on heating in the range of 650-700 °C and also under a load to twinning pseudo-elastic deformation may enhance the accumulation of surface charges. On the basis of these results, Matsuo et al 81 have suggested the ML mechanism in SAOE that twinning pseudo-elastic deformation under a load creates a local electric eld around the twin interface.…”

“…Holes then excite Eu 1+ to produce Eu 2+* , which then returns to the ground state by emitting a green light at around 520 nm. 83,84 The traps may be regenerated by irradiation with UV-radiation. 85,86 However, it does not explain the self-reproducible ML aer annealing the material between 80 and 300 °C.…”